树枝状TiO2复合结构的合成与光电化学性能表征

In this article a TiO2 rutile and anatase nano-branched electrode was prepared by combining electrospinning and hydrothermal processes. The experemental resluts show this branched multiphase TiO2 film is a combinatiomn of anatase nanofiber and rutile nanorods. Within the interface of multiphase TiO2, the homojunction promoted the charge separation, improved the chager transfer rate and then acqiured a relatively high efficiency for photoelectrochemical water splitting. The photoelectrochemical test resluts show that 3 hours' hydroythermal depsition yeilded the highest photoelectrochemical performance for the branched multiphase TiO2 film. The photocurrnt density reached 0.95 mA/cm2 at the 1.0 V vs. Ag/AgCl.